<template>
  <div id="add-blog" v-if="!submmited">
    <h2>添加博客</h2>
    <form>
        <label>博客标题</label>
        <input type="text" v-model="blog.title" required />

        <label>博客内容</label>
        <textarea v-model="blog.content"></textarea>

        <div id="checkboxes">
          <label>vue.js</label>
          <input type="checkbox" value="vue.js" v-model="blog.categories"/>
          <label>node.js</label>
          <input type="checkbox" value="node.js" v-model="blog.categories"/>
          <label>react.js</label>
          <input type="checkbox" value="react.js" v-model="blog.categories"/>
          <label>angular4</label>
          <input type="checkbox" value="angular4" v-model="blog.categories"/>
        </div>

        <label>作者</label>
        <select v-model="blog.author">
          <option v-for="author in authors">{{author}}</option>
        </select>

        <button @click.prevent="post">添加博客</button>
    </form>
    
    <div v-if="submmited"><h3>您的博客添加成功！</h3></div>
    <div id="preview">
        <h3>博客总览</h3>
        <p>博客标题：{{blog.title}}</p>
        <p>博客内容：</p>
        <p>{{blog.content}}</p>
        <p>博客分类:</p>
        <ul>
          <li v-for="categry in blog.categories">{{categry}}</li>
        </ul>
        <p>作者：{{blog.author}}</p>
    </div>
  </div>
</template>

<script>
export default {
  name: 'add-blog',
  data () {
    return {
      blog:{
          title:'',
          content:'',
          categories:[],
          author:''
      },
      authors:["andy","kitty","ada","arlene"],
      submmited:false
    }
  },
  methods: {
    post:function(){
      this.$http.post("https://vueblog-692b6.firebaseio.com/posts.json",this.blog).then(function (data) {
        //console.log(data);
        this.submmited = true;
        })
    }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
#add-blog *{
  box-sizing: border-box;
}
#add-blog{
  margin: 20px auto;
  max-width: 600px;
  padding: 20px;
}
label{
  display: block;
  margin: 20px 0 10px;
}
input[type="text"],textarea,select{
  display: block;
  width: 100%;
  padding: 8px;
}
textarea{
  height: 200px;
}
#checkboxes label{
  display: inline-block;
  margin-top: 0;
}
#checkboxes input{
  display: inline-block;
  margin-right: 10px;
}
button{
  display: block;
  margin: 20px 0;
  background: crimson;
  color: #fff;
  border: 0;
  padding: 14px;
  border-radius: 4px;
  font-size:18px;
  cursor: pointer;
}
#preview{
  padding: 10px 20px;
  border: 1px dotted #ccc;
  margin: 30px 0;
}
h3{
  margin-top: 10px;
}
</style>
